CN210764765U - Novel wastewater treatment device - Google Patents
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- CN210764765U CN210764765U CN201921785399.3U CN201921785399U CN210764765U CN 210764765 U CN210764765 U CN 210764765U CN 201921785399 U CN201921785399 U CN 201921785399U CN 210764765 U CN210764765 U CN 210764765U
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Abstract
The utility model relates to the technical field of wastewater treatment, in particular to a novel wastewater treatment device, which comprises a ferrite micro-crystal reactor, a Fenton-like reactor and a clarification tank; the input end and the inlet tube of ferrite microcrystal reactor are connected, the output end of ferrite microcrystal reactor with the input of class fenton reactor is connected, the output end of class fenton reactor with the input of depositing reservoir is connected, the output and the play water piping connection of depositing reservoir. The device is effectual combines together ferrite microcrystal reactor and class fenton reactor and depositing reservoir, has got rid of heavy metal and COD pollutant in the waste water high-efficiently, solves among the prior art problem that the treatment cost is high, the operation is complicated.
Description
Technical Field
The utility model relates to a waste water treatment technical field especially relates to a novel waste water treatment device.
Background
With the rapid development of socioeconomic and the continuous acceleration of industrialization in China, more and more industrial wastewater is discharged into the water environment, wherein especially high-concentration organic wastewater containing heavy metals has the problems of multiple metal types, different forms, high organic matter concentration, complex components, high treatment difficulty, serious pollution to aquatic environment and the like, and seriously threatens the health development of human society and the ecological safety of the environment.
The wide and lasting nature of heavy metal pollution hazards to human health and environmental safety is increasingly of high concern to governments and people. As the largest industrial country in the world, China faces serious heavy metal pollution problems, and various industrial production activities including energy mining, power generation, metallurgy, electroplating, mining and the like all relate to processing and using of a large amount of heavy metal-containing minerals and raw materials, so that a large amount of heavy metal-polluted wastewater is generated. As the economic development of China enters a new stage, the establishment of strict environmental protection standards and control measures to protect the health of people and realize the sustainable development of social economy becomes social consensus. In recent years, government environmental protection departments have increasingly strict settings on heavy metal discharge standards of various industrial wastewater, and treatment and monitoring are gradually in place, so that the complexity of heavy metal pollution wastewater treatment increasingly challenges the treatment capacity of the conventional technology, especially the standard treatment of certain special industrial wastewater.
The COD is chemical oxygen demand, which is the amount of oxygen consumed by the reductive substance in water during the oxidation-reduction reaction under the action of a strong oxidant, and is mainly used to indicate the amount of the reductive substance in water, and the reductive substance in water mainly includes various organic substances, and in addition, includes a small amount of nitrite, sulfide, ferrite, and the like. Therefore, COD is often used as an index for measuring the content of organic substances in water, and the higher the COD is, the more serious the water body is polluted by the organic substances. COD exceeds standard, so that the natural water quality is deteriorated, the ecological balance is finally influenced, namely, organisms such as fish in the water body are damaged, and meanwhile, the organisms enter a human body finally through the enrichment of a food chain, so that chronic poisoning is caused.
The conventional neutralization flocculation precipitation method is carried out by adding Ca (OH)2Most heavy metals can be removed by traditional water treatment agents such as aluminum salt, ferric salt and organic sulfur, but the chemical mechanism involved in the treatment process is single, mainly adsorption and precipitation are taken as main mechanisms, so that the treatment process has considerable limitations, and particularly, certain specific heavy metals cannot meet new discharge standards, for example, the traditional flocculant adsorbent is basically ineffective for removing dissolved selenium in the form of selenate.
Electrochemical methods, such as electrodialysis and electrolytic flocculation, can also be used for treating heavy metal wastewater, and despite the unique advantages of these treatment methods, they still face economic and technical obstacles, are complicated to operate and control, and have problems in that they cannot meet the latest strict discharge standards.
Therefore, aiming at the problem that the traditional chemical flocculation precipitation method and various electrochemical methods can not meet the increasingly strict environmental emission standard of various related countries and places, a treatment technology which is simple in operation, reasonable in cost and capable of efficiently removing heavy metals and COD pollutants in wastewater is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel wastewater treatment device is provided, heavy metal and COD pollutant in the waste water can't be got rid of to current wastewater treatment technique high efficiency is solved to there is the problem that the treatment cost is high, the operation is complicated.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a novel wastewater treatment device comprises a ferrite microcrystal reactor 1, a Fenton-like reactor 2 and a clarification tank 3;
the input end of the ferrite microcrystal reactor 1 is connected with a water inlet pipe, the output end of the ferrite microcrystal reactor 1 is connected with the input end of the Fenton-like reactor 2, the output end of the Fenton-like reactor 2 is connected with the input end of the clarification tank 3, and the output end of the clarification tank 3 is connected with a water outlet pipe;
the Fenton-like reactor 2 comprises a reaction tank 4, a water distribution system 5, a packing layer 6 and a first chemical dosing system 7, wherein the water distribution system 5 and the packing layer 6 are both arranged inside the reaction tank 4, the water distribution system 5 is arranged at the lower part of the packing layer 6, the first chemical dosing system 7 is arranged on a passage between the ferrite micro-crystal reactor 1 and the Fenton-like reactor 2, the input end of the Fenton-like reactor 2 is communicated with the water distribution system 5, and the output end of the Fenton-like reactor 2 is arranged at the upper part of the packing layer 6.
Further, the fenton-like reactor 2 further comprises an aerator 8 and a supporting layer 9, wherein the aerator 8 is arranged at the lower part of the water distribution system 5, and the supporting layer 9 is arranged between the water distribution system 5 and the packing layer 6.
Further, the filler of the filler layer 6 is one or a mixture of two of sponge iron or iron shavings mixed in any proportion.
Further, the device also comprises a pre-settling tank 15 arranged between the ferrite micro-crystal reactor 1 and a water inlet pipe, wherein the input end of the pre-settling tank 15 is connected with the water inlet pipe, and the output end of the pre-settling tank 15 is connected with the input end of the ferrite micro-crystal reactor 1.
Further, a second dosing system 10 and a third dosing system 11 are respectively disposed at the upper portions of the ferrite micro-crystal reactor 1 and the clarification tank 3.
Further, an agitator 12 is provided inside the ferrite micro-crystal reactor 1.
Further, the bottom of the pre-settling tank 15 and the bottom of the clarification tank 3 are both provided with a sludge discharge system 13.
Further, the bottoms of the pre-settling tank 15 and the clarification tank 3 are in a conical structure, and the conical angle is 30-150 degrees.
The utility model provides a novel wastewater treatment device, which comprises a ferrite micro-crystal reactor 1, a Fenton-like reactor 2 and a clarification tank 3; the input end of the ferrite microcrystal reactor 1 is connected with a water inlet pipe, the output end of the ferrite microcrystal reactor 1 is connected with the input end of the Fenton-like reactor 2, the output end of the Fenton-like reactor 2 is connected with the input end of the clarification tank 3, and the output end of the clarification tank 3 is connected with a water outlet pipe; the Fenton-like reactor 2 comprises a reaction tank 4, a water distribution system 5, a packing layer 6 and a first chemical dosing system 7, wherein the water distribution system 5 and the packing layer 6 are both arranged inside the reaction tank 4, the water distribution system 5 is arranged at the lower part of the packing layer 6, the first chemical dosing system 7 is arranged on a passage between the ferrite micro-crystal reactor 1 and the Fenton-like reactor 2, the input end of the Fenton-like reactor 2 is communicated with the water distribution system 5, and the output end of the Fenton-like reactor 2 is arranged at the upper part of the packing layer 6. Thus, the utility model discloses an among the novel effluent treatment plant, the input intercommunication of inlet tube and ferrite micro-crystal reactor 1, the output of ferrite micro-crystal reactor 1 and class fenton reactor 2's input intercommunication, class fenton reactor 2's output and depositing reservoir 3's input intercommunication, depositing reservoir 3's output and outlet pipe intercommunication. The wastewater is input into the ferrite microcrystal reactor 1 from the input end of the ferrite microcrystal reactor 1 through a water inlet pipe, under the alkaline condition, the metal iron powder, the ferrous salt, the ferric iron salt and the sodium nitrate are utilized to generate the ferrite microcrystal in the ferrite microcrystal reactor 1, the synthesized ferrite microcrystal is different from iron oxide minerals common in nature, the main body of the synthesized ferrite microcrystal is an unstable iron oxide mixture easy to convert, the main effective components are similar to certain green rust structures and non-standard iron oxides, the iron oxide microcrystal is free of fixed components and structures and has high chemical activity, the active ferrite microcrystal has high-capacity anion exchange capacity and cation lattice substitution capacity, and simultaneously has certain chemical reduction capacity and the inherent surface affinity of the iron oxideTherefore, the ferrite microcrystal can be used for converting and removing heavy metal pollutants in various forms in the wastewater through composite action and synergistic mechanism of surface adsorption, ion exchange, lattice substitution, chemical reduction and the like, and is absorbed and fixed in the ferrite microcrystal structure, so that the aims of stabilization, reduction and harmless treatment are fulfilled. Further inputting the wastewater treated by the ferrite microcrystal into a Fenton-like reactor 2, wherein the Fenton-like reactor 2 comprises a water distribution system 5, a packing layer 6, a first chemical dosing system 7 and a reaction tank 4, the water distribution system 5 and the packing layer 6 are both arranged inside the reaction tank 4, the water distribution system 5 is arranged at the lower part of the packing layer 6, the first chemical dosing system 7 in the Fenton-like reactor 2 is arranged on a passage between the ferrite microcrystal reactor 1 and the Fenton-like reactor 2, the input end of the Fenton-like reactor 2 is communicated with the water distribution system 5, the output end of the Fenton-like reactor 2 is positioned at the upper part of the packing layer 6, and the wastewater treated by the ferrite microcrystal contains Fe with a certain concentration2+Before the wastewater enters the Fenton-like reactor 2, the acidic reagent and hydrogen peroxide are sequentially added by the first dosing system 7, and then the wastewater is conveyed to the water distribution system 5 from the input end of the Fenton-like reactor 2, the promoting reagent can be uniformly mixed by the water distribution system 5, and at the moment, the wastewater containing the hydrogen peroxide, the filler in the filler layer 6 and Fe with a certain concentration2+The reaction generates hydroxyl free radicals, wherein the principle of generating the hydroxyl free radicals by a Fenton-like reaction system of iron and hydrogen peroxide is as follows:
Fe0(s)+H2O2+2H+→Fe(II)+2H2O
Fe(II)+H2O2→Fe(III)+·OH+OH-
Fe(II)+H2O2→Fe(IV)(e.g.,FeO2+)+H2O
Fe(II)+O2→Fe(III)+O2·-
Fe(II)+O2·-+2H+→Fe(III)+H2O2
utilize the COD in the hydroxyl free radical treatment waste water of production, but the non-selectivity mineralizes poisonous refractory pollutants fast because of the hydroxyl free radical, perhaps decomposes the toxic refractory pollutants and turns into the micromolecular substance of easy biochemical treatment, improves the biodegradability of waste water, reduces the COD in the waste water, then the mode through the overflow is discharged to clarification tank 3 by the output of class fenton reactor 2, is discharged after clarifying treatment is carried out to waste water by clarification tank 3.
The utility model relates to a novel waste water treatment device compares with prior art, has following technological effect:
effectively combines the ferrite micro-crystal reactor, the Fenton-like reactor and the clarification tank, efficiently removes heavy metals and COD pollutants in the wastewater, and improves the product Fe in the ferrite micro-crystal reactor2+The utilization rate of (2) is simple to operate, the standard discharge of the waste water is effectively ensured, and the treatment cost of the waste water is reduced.
Drawings
FIG. 1 is a schematic view of a novel wastewater treatment device of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1. ferrite microcrystal reactor, 2 Fenton-like reactor, 3 clarification tank, 4 reaction tank, 5 water distribution system, 6 packing layer, 7 first chemical dosing system, 8 aerator, 9 supporting layer, 10 second chemical dosing system, 11 third chemical dosing system, 12 stirrer, 13 sludge discharge system, 14 alkali adding system, 15 pre-settling tank.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "center", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a novel wastewater treatment device, which comprises a ferrite micro-crystal reactor 1, a fenton-like reactor 2 and a clarification tank 3; the input end of the ferrite microcrystal reactor 1 is connected with a water inlet pipe, the output end of the ferrite microcrystal reactor 1 is connected with the input end of the Fenton-like reactor 2, the output end of the Fenton-like reactor 2 is connected with the input end of the clarification tank 3, and the output end of the clarification tank 3 is connected with a water outlet pipe; the Fenton-like reactor 2 comprises a reaction tank 4, a water distribution system 5, a packing layer 6 and a first chemical dosing system 7, wherein the water distribution system 5 and the packing layer 6 are both arranged inside the reaction tank 4, the water distribution system 5 is arranged at the lower part of the packing layer 6, the first chemical dosing system 7 is arranged on a passage between the ferrite micro-crystal reactor 1 and the Fenton-like reactor 2, the input end of the Fenton-like reactor 2 is communicated with the water distribution system 5, and the output end of the Fenton-like reactor 2 is arranged at the upper part of the packing layer 6.
Thus, the utility model discloses an among the novel effluent treatment plant, the input intercommunication of inlet tube and ferrite micro-crystal reactor 1, the output of ferrite micro-crystal reactor 1 and class fenton reactor 2's input intercommunication, class fenton reactor 2's output and depositing reservoir 3's input intercommunication, depositing reservoir 3's output and outlet pipe intercommunication. Wastewater is input into the ferrite micro-crystal reactor 1 from the input end of the ferrite micro-crystal reactor 1 through a water inlet pipe, and under the alkaline condition, metal iron powder, ferrous salt, ferric salt and sodium nitrate are utilizedFerrite microcrystals are generated in the ferrite microcrystal reactor 1, the synthesized ferrite microcrystals are different from iron oxide minerals common in the nature, the main body of the ferrite microcrystals is an unstable iron oxide mixture easy to convert, the main effective components of the ferrite microcrystals are similar to iron oxides in certain green rust structures and non-standard states, no fixed components and structural compositions exist, the ferrite microcrystals have high chemical activity, and the active ferrite microcrystals have high-capacity anion exchange capacity and cation lattice substitution capacity, simultaneously have certain chemical reduction capacity and inherent surface affinity adsorption capacity of the iron oxides, so the ferrite microcrystals can be used for converting and removing heavy metal pollutants in various forms in wastewater through the composite action and the synergistic mechanism of surface adsorption, ion exchange, lattice substitution, chemical reduction and the like and are absorbed and fixed in the ferrite microcrystals, the purposes of stabilization, reduction and harmless treatment are achieved. Further inputting the wastewater treated by the ferrite microcrystal into a Fenton-like reactor 2, wherein the Fenton-like reactor 2 comprises a water distribution system 5, a packing layer 6, a first chemical dosing system 7 and a reaction tank 4, the water distribution system 5 and the packing layer 6 are both arranged inside the reaction tank 4, the water distribution system 5 is arranged at the lower part of the packing layer 6, the first chemical dosing system 7 in the Fenton-like reactor 2 is arranged on a passage between the ferrite microcrystal reactor 1 and the Fenton-like reactor 2, the input end of the Fenton-like reactor 2 is communicated with the water distribution system 5, the output end of the Fenton-like reactor 2 is positioned at the upper part of the packing layer 6, and the wastewater treated by the ferrite microcrystal contains Fe with a certain concentration2+Before the wastewater enters the Fenton-like reactor 2, the acidic reagent and hydrogen peroxide are sequentially added by the first dosing system 7, and then the wastewater is conveyed to the water distribution system 5 from the input end of the Fenton-like reactor 2, the promoting reagent can be uniformly mixed by the water distribution system 5, and at the moment, the wastewater containing the hydrogen peroxide, the filler in the filler layer 6 and Fe with a certain concentration2+The hydroxyl free radical is generated by reaction, and then the generated hydroxyl free radical is utilized to treat COD in the wastewater, because the hydroxyl free radical can non-selectively and rapidly mineralize toxic and difficultly-degraded pollutants, or decompose and convert the toxic and difficultly-degraded pollutants into micromolecular substances which are easy to biochemically treat, the biodegradability of the wastewater is improved, the COD in the wastewater is reduced,then the wastewater is discharged to a clarification tank 3 from the output end of the Fenton-like reactor 2 in an overflow mode, and the wastewater is clarified by the clarification tank 3 and then discharged.
In a more preferred embodiment, multiple stages of the ferrite micro-crystal reactor 1 may be provided and the multiple stages of the ferrite micro-crystal reactor 1 may be connected in series or in parallel, since some compositionally complex waste waters require multiple stages of treatment to achieve the desired level.
In order to promote the uniform mixing of the medicaments and prevent the packing layer 6 from being blocked, the Fenton-like reactor 2 further comprises an aerator 8 and a supporting layer 9, wherein the aerator 8 is arranged at the lower part of the water distribution system 5, and the supporting layer 9 is arranged between the water distribution system 5 and the packing layer 6.
In order to improve the reaction rate and the efficiency of treating wastewater, the filler of the filler layer 6 is one or a mixture of sponge iron and iron shavings mixed in any proportion.
In order to reduce the fluctuation of the quality of wastewater and remove the interference factors in the wastewater in advance, the device also comprises a pre-settling tank 15 arranged between the ferrite micro-crystal reactor 1 and a water inlet pipe, wherein the input end of the pre-settling tank 15 is connected with the water inlet pipe, and the output end of the pre-settling tank 15 is connected with the input end of the ferrite micro-crystal reactor 1.
In order to accurately add the medicament into the ferrite micro-crystal reactor 1 and the clarification tank 3, the upper parts of the ferrite micro-crystal reactor 1 and the clarification tank 3 are respectively provided with a second dosing system 10 and a third dosing system 11.
In order to ensure that accumulated materials deposited at the bottom of the tank are effectively discharged, the bottom of the pre-settling tank 15 and the bottom of the clarification tank 3 are both provided with a sludge discharge system 13.
In order to accelerate the sedimentation speed, the bottoms of the pre-sedimentation tank 15 and the clarification tank 3 are in a conical structure, and the conical angle is 30-150 degrees.
In another preferred embodiment, as shown in fig. 1, on the basis of the above-described technical solution, the following may also be performed: the Fenton-like reactor 2 further comprises an aerator 8 and a supporting layer 9, wherein the aerator 8 is arranged at the lower part of the water distribution system 5, and the supporting layer 9 is arranged between the water distribution system 5 and the packing layer 6. Like this, aerator 8 sets up the lower part at water distribution system 5, and supporting layer 9 sets up between water distribution system 5 and packing layer 6, and aerator 8's setting can carry out abundant stirring and washing out to type fenton reactor 2 through the aeration, and then promotes the medicament misce bene and prevent the jam of packing layer 6, and the intensity and the frequency of aeration can be according to the nimble control of concrete behavior and 6 corrosion degree of packing layer, when packing layer 6 does not have obvious jam, can not carry out aeration treatment.
In another technical scheme, on the basis of the above, the filler of the filler layer 6 is one or a mixture of two of sponge iron and iron shavings mixed in any proportion. Therefore, the sponge iron or the iron shavings in the packing layer 6 can provide a reactant iron simple substance for the Fenton-like reaction system, and the iron simple substance existing in the sponge iron and iron shavings form can be in full contact with the whole reaction system, so that the reaction rate and the wastewater treatment efficiency are improved.
On the basis of the above-mentioned preferred technical scheme, the utility model provides a device still is including setting up preliminary sedimentation tank 15 between ferrite micro crystal reactor 1 and the inlet tube, the input and the inlet tube of preliminary sedimentation tank 15 are connected, the output of preliminary sedimentation tank 15 with ferrite micro crystal reactor 1's input is connected. Thus, a pre-settling tank 15 is further provided between the water inlet pipe and the ferrite micro-crystal reactor 1, and the wastewater is pre-treated by the pre-settling tank 15 to reduce the concentration of suspended solids in the wastewater and then is subjected to subsequent treatment, because the wastewater may contain a large amount of suspended solids, and the presence of a large amount of suspended solids may seriously affect the degree of treatment of the wastewater by the ferrite micro-crystal reactor 1 and the fenton-like reactor 2, but may not be treated by the pre-settling tank 15 when the concentration of suspended solids in the wastewater is low. In addition, the pH value of the wastewater may also fluctuate greatly, for example, when the boiler pickling wastewater is discharged into a desulfurization wastewater system, the wastewater is acidic and contains a large amount of complexing agents to assist in dissolving out rust and scale, and the wastewater containing a large amount of acids and complexing agents directly enters the ferrite micro-crystal reactor 1 to interfere with the normal operation of the ferrite micro-crystal reaction process, so that the interference factors in the wastewater are removed in advance through necessary medicament treatment in the pretreatment process of the wastewater, the fluctuation of the water quality of the wastewater is reduced, and the stable operation and the standard-reaching discharge of the whole treatment device are facilitated.
More preferably, the upper parts of the ferrite micro-crystal reactor 1 and the clarifier 3 are respectively provided with a second dosing system 10 and a third dosing system 11. Thus, the agents are added to the ferrite micro-crystal reactor 1 and the clarifier 3 through the second and third chemical dosing systems 10 and 11, respectively.
In order to realize a better treatment process, a further preferable technical scheme is that an alkali adding system 14 is arranged on a passage between the Fenton-like reactor 2 and the clarification tank 3; a stirrer 12 is arranged inside the ferrite micro-crystal reactor 1; the pre-settling tank 15 and the bottom of the clarification tank 3 are both provided with a sludge discharge system 13. Thus, the stirrer 12 is arranged in the ferrite micro-crystal reactor 1, and the stirrer 12 can ensure that the reaction medium in the reactor is in a fluidized state, thereby accelerating the reaction. The pre-settling tank 15 and the sludge discharge system 13 arranged at the bottom of the clarification tank 3 can effectively discharge accumulated materials deposited at the bottom of the tank.
On the basis of the scheme, the bottoms of the pre-settling tank 15 and the clarification tank 3 are in conical structures, and the conical angle is 30-150 degrees. Thus, the bottom of the preliminary sedimentation tank 15 and the clarification tank 3 are of a tapered structure, and the taper angle is set to be 30-150 degrees, so that the deposition speed can be increased by the tapered structure.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. A novel wastewater treatment device is characterized by comprising a ferrite microcrystal reactor (1), a Fenton-like reactor (2) and a clarification tank (3);
the input end of the ferrite microcrystal reactor (1) is connected with a water inlet pipe, the output end of the ferrite microcrystal reactor (1) is connected with the input end of the Fenton-like reactor (2), the output end of the Fenton-like reactor (2) is connected with the input end of the clarification tank (3), and the output end of the clarification tank (3) is connected with a water outlet pipe;
the Fenton-like reactor (2) comprises a reaction tank (4), a water distribution system (5), a packing layer (6) and a first chemical dosing system (7), wherein the water distribution system (5) and the packing layer (6) are arranged inside the reaction tank (4), the water distribution system (5) is arranged on the lower portion of the packing layer (6), the first chemical dosing system (7) is arranged on a passage between the ferrite microcrystal reactor (1) and the Fenton-like reactor (2), the input end of the Fenton-like reactor (2) is communicated with the water distribution system (5), and the output end of the Fenton-like reactor (2) is positioned on the upper portion of the packing layer (6).
2. Wastewater treatment plant according to claim 1, characterized in that the Fenton-like reactor (2) further comprises an aerator (8) and a supporting layer (9), the aerator (8) being arranged in the lower part of the water distribution system (5), the supporting layer (9) being arranged between the water distribution system (5) and the packing layer (6).
3. The wastewater treatment device according to claim 1, wherein the filler of the filler layer (6) is one or a mixture of sponge iron and iron shavings mixed in any proportion.
4. A wastewater treatment plant according to claim 1, characterized by further comprising a pre-settling tank (15) arranged between the ferrite micro-crystal reactor (1) and a water inlet pipe, wherein the input end of the pre-settling tank (15) is connected to the water inlet pipe and the output end of the pre-settling tank (15) is connected to the input end of the ferrite micro-crystal reactor (1).
5. Wastewater treatment plant according to claim 4, characterized in that the upper parts of the ferrite micro-crystal reactor (1) and the clarifier (3) are provided with a second dosing system (10) and a third dosing system (11), respectively.
6. Wastewater treatment plant according to claim 5, characterized in that the inside of the ferrite micro-crystal reactor (1) is provided with an agitator (12).
7. Wastewater treatment plant according to any of claims 4-6, characterized in that the pre-settling tank (15) and the bottom of the clarifier (3) are provided with a sludge discharge system (13).
8. The wastewater treatment plant according to claim 7, characterized in that the bottom of the pre-settling tank (15) and the clarifier (3) are of conical configuration with a cone angle of 30-150 °.
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| CN112694188A (en) * | 2019-10-23 | 2021-04-23 | 大唐环境产业集团股份有限公司 | Novel wastewater treatment device and treatment method thereof |
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